Mechanism for working pulpous material



June 1927.

H. w. JESPERSEN MECHANISM FOR WORKING PULPOUS MATERIAL Original Filed May 16, 1924 Patented June 21, 1927.

UNITED STATES 1,633,181 PATENT, OFFICE.

HELGO WIGGO JESPERSEN, OF WESTERN, SPRINGS, ILLINOIS, ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK,

NEW YORK.

N. Y., A CORPORATION OF MECHANISM FOR WORKING PULPOUS MATERIAL.

Application filed May 16, 1924, Serial No. 713,703. Renewed November 18, 1926.

This invention relates to improvements in mechanism for working pulpous material, and more particularly to mechanism .for forming such material to constitute a homogeneous coating for cores in strand form such as wire, and the like.

Mechanisms made in accordance with this invention are particularly well adapted for use in connection with the method and apparatus for coatin cores disclosed in the co pending applicatlonof H. G. lValker, Serial No. 621,242, filed February 26, 1923, but it is to be understood that the invention is not limited to such use, but only in so far as defined by'the appended claims.

An object of the invention is to provide a forming mechanism which can be adjusted while in operation.

Another object of the invention is to provide a forming mechanism whereina forming member yieldingly engaging the pulpous material on a core can be adjusted during the operation of the forming mechanism.

A further object of the invention is to provide a forming mechanism which can be adjusted while in operation and which will not strip the coating from the core while in op-' eration.

A forming mechanism embodying the invention comprises a plurality of plates disposed in opposed relation and pivotally mounted in a rotatable carrier in positions wherein they are adapted to engage the pulpous material on a core being drawn through the forming mechanism. Springs connect the plates to an annular member slidably journaled on the carrier and adapted to be longitudinally displaced in either direction while the forming mechanism is in operation. Means is provided to rotate the annular member with respect to the rotatable carrier during such longitudinal displacement of the annular member and this rotation is utilized to increase or decrease the pressure with which the plates engage the pulpous material on the core, the torsion of the springs being increased when the rotation is in one direction and being decreased when the rotation is in the other direction.

Further objects of the invention will become apparent as the detail description progresses, reference being had to the accompanying drawing, wherein ig. 1 is anelevation of a formingmechanlsm embodying the lnvention; w Fig. 2 1s a sectlon taken on line 2-2 of Fig. 1

to the forming mechanism shown in Fig. 1,

and

Figs. 6 and? are enlarged sectional Views showing the forming of the pulp coating during the forming operation and after the completion of the forming operation respectively.

The forming mechanism shown in the accompanying drawing is especially adapted to be used in conjunction with apparatus shown in the aforementioned application of H. G. Walker, which apparatus is adapted to apply pulpous material to a core and comprises a foraminous member and a plurality of felt covered squeezing rolls. In'the op eration of this apparatus the core is first brought into contact with pulpous material deposited upon the foraminous member, and then an additional amount-of pulpous material is deposited upon the core and the foraminous member. The pulp so deposited and the core are-then brought into contact with one of the squeezing rolls which cooperates with the squeeze out the free liquid. so to speak in the pulp coating. The partially dried pulp adheres to the felt of the squeezing, roll in the form of a ribbon with the-core substantially centrally located therein as shown in Fig. 4 of the accompanying drawing, and the core with the pulp ribbon attached thereto passes around the roll and between it and its cooperating roll, the contour imparted to the ribbon by the squeezing rolls being shown in Fig. 5.

The forming mechanism embodying the features of the present invention is designed to receive the core and its ribbon from the squeezing rolls and to wrap the projecting edges of the ribbon around the core and around each other until it conforms sub-,

stantially to the shape of the core. The appearance of the coating after it is first acted upon by the forming'mechanism is shown in Fig-6, and the appearance thereof after the foraminous member to.

forming action is completed is shown in Fig. 7.

Referring to the drawings, the forming mechanism comprises a rotatable carrier 10,

the rotatable carrier'in turn comprising a tubular member 11 rigidly secured to and between a plurality of cup-shaped collars 12 and 13. Integral with each of the collars 12 and 13 is'a sleeve, thesleeves beingdesignated by the reference characters'l l and 15 respectively,rand being rotatably mounted in suitable bearings16, 17 and,18.. A friction wheel 19. .spl-ined upon the sleeve .15 engages a friction disc rigidly secured to a sh'aft21 which is rotatably journaled by any suitable means (not shown)... The frictiongwheel 19 and the friction disc 20 provide.1'n-eans whereby the carrier 10 may be rotated, the friction disc :20 being driven by suitable means :(notshown). The speed of the rotatable carrier 10 may be varied by adjusting the friction wheel 19 with respect to the axis of rotation of'the friction disc 20, the friction wheel 19 being positioned between the. bifurcations of a bifurcated bracket 22 slidably journaled upon a rod23 projecting from the bearing 18. A'set screw 24 threaded into the bracket 22 is employed to rigidly secure the bracket 22 andthe friction wheel 19 in an adjusted position With'resp' e'ct to the friction disc 20. Disp-os-edwi-thin the tubular member 11. are a plurality 10f forming members, .each of which comprises a plate. 25, the plates 25 being disposed in: opposed relation. Each plate 25 is pivotally *mounted between the collars'12 and 13, aplurality of trunnions 26 beingprovided for this purpose. One end "of each plate 25 is adapted to engage the pulpous material on a'core being. drawn through the forming mechanism, and the other end of the plate is rigidly. secured to one end of one of a plurality of springs 27 by means of rivets-2S, the other end ofeach spring 27 being rigidly secured. to an annular member-'29slidably journaled upon the tubular memb'er' 11. It will benoted that the tubular member 11v is provided with a plurality of slots 30 adapted to accommodate the springs 27, and that the annular member 29 is provided with 'a slot 31 which is angularly disposed with respect to the axis-of the annular member. The slot- 31 cooperates with a pin 82 projecting from the tubular member ll'to an-gularly. displace the annular member 29 with respect to the tubul'ar member 11 wh'enthe annular member is moved along the tubular member in either direction. The arrangementis suchzthat if the annular member 29' is moved to the left (Fig. 2) it will be displaced in a counterclockwise direction (Fig. 3) with-respect to the tubular member, and the-springs 27 will tend to rotate the plates 25 around their pivotal axes to bring them closer to the axis la-rly displaced in 'a 'counterclockwise direction' "(Fig."3)' with respect to the tubular member 11, and the springs '27 tend to retate the pulp engaging ends of the plates 25 in directions which will cause them to 'draw away from the axis of rotation of the tubular member 11.

"The annular member '29, may be moved' in either.direction during operation of the forming mechanism and it is provided with an annularfiange 3 1 which may be engaged bya'ny suitable tool and forced in the desired direction. 7 I p 7 In the operation of a forming mechanism, the core carrying a ribbon of .pulpous material as illustrated in Fig. 5 is drawn through the, sleeve 14 and into engagement with the plates '25, which first operate on the. ribbon of pulpous material to shape it as shownin Fig. 6. The plates 25 continue to wrap the ribbon around itself'and around the core until it isdraw-n through the sleeve 15, the contour of the pulpousmaterial when it leaves the plates 25 being shown in Fi 7. If during the operation of the forming mechanism the operatorwishes to increase or decreasethe pressure of the plates upon the. pulpous-material, it is only necessary to move the annular member 29 in the proper direction.v This apparent. that the forming mechanism may be adjusted in this manner to properly vform the pulpons material around the cor-es of various diameters.

What is claimed is;

1. In a mechanism for working pulpous material on a core, a forming member. yieldingly engaging the pnlpous material, means for causing; relative movement between. the formingniember,and the pu-lpous material, and meansoperable duringsaid movement for adjusting the forming fmeniber. j p

in a mechanism for working p'ulpous material on a core, yielding means engaging the.'-pulpous material, means for causing relative 'movement between :the yielding means-and the pulpous material,-and means for adjusting the yielding means during said relative =movement.- V 1 3. In a mecha'nismfor working pulpous material ona core, a pluralityof forming members yieldingly engaging; the pulpous material, means for causing relative movementbetween the. forming members and the pulpous. material, andmeans operable during said relative movement for simultaneously adjusting the. forming.members. 7

1. In a mechanism for working pnlpous material on a core, a plurality ofepposed forming members .yieldingly engagingthe pulp'ousmaterial, means for causing relative movement between/the forming members and the pulpous material, and means operable during said movement for adjusting the forming members.

5. In a mechanism for working pulpous material on a core, a plurality of opposed forming members yieldingly engaging the pulpous material, means for causing relative movement between the forming members and the pulpous material, and means operable during said movement for simultaneously adjusting the forming members.

6. In a mechanism for working pulpous material on a core, a rotatable forming member yieldingly engaging the pulpous material, and means operable during the rotation of the forming member for adjusting the forming member.

7. In a mechanism for working pulpous material on a core, a forming member yieldingly engaging the pulpous material, means for causing relative rotary movement between the pulpous material and the forming member, and means operable during the relative rotary movement for adjusting the forming member.

8. In a mechanism for working pulpous material on a traveling core, a forming member yieldingly engaging the pulpous material, means for causing relative lateral movement between the pulpous material and the forming member, and means operable during the relative lateral movement for adjusting the forming member.

9. In a mechanism for working pulpous material on a traveling core, a forming member yieldingly engaging the pulpous material, means for rotating the forming member around the core, and means operable during the rotation of the forming member for adjusting the forming member.

10. In a mechanism for working pulpous material on a core, a rotatable pressure member yieldingly engaging the pulpous material, and means operable during the rotation of the pressure member for adjusting the pressure member.

11. In a mechanism for working pulpous material on a core, a plurality of rotatable members yieldingly engagin the pulpous material, and common means for adjusting the said members during rotation thereof.

12. In a mechanism for working pulpous material on a core, a plurality of spring pressed rotatable members engaging the pulpous material, and means for adjusting the spring pressed members during rotation thereof.

13. In a mechanism for working pulpous material on a core, a plurality of rotatable members yieldingly engaging the pulpous material and disposed in opposed relation, and means for adjusting said members during rotation thereof.

14:. In a mechanism for working pulpous material on a core, a plurality of pressure members yieldingly engaging the pulpous material,fmeans for rotating said members around the core, and means for adjusting said membersduring rotation thereof.

15. In a mechanism for working pulpous materialon a core, a plurality of forming members yieldingly engaging the pulpous material, means for rotating said members around the core, and common means for adjusting said members during rotation thereof. a 1 g 16. In a mechanisn'i for working pulpous material on a core, a forming member yieldingly engaging the pulpous material, means for causing a relative movement between the forming member and the pulpous material, and means including an element encircling the core for adjusting the forming member during said relative movement.

17. In a mechanism for working pulpous material on a core, a forming member yieldingly engaging thepulpous material, means for causing a relative movement between the forming member and the pulpousmaterial, and means including a rotatable ele ment for adjusting the forming member during said relative movement.

18. In a mechanism for working pulpous material on a core, a forming member yieldi ngly engaging the pulpous material, means ror causing a relative movement between the forming member and the pulpous material, and means including a rotatable element encircling the core for adjusting the forming member during said relative movement.

19.111 a mechanism for working pulpous material on a core, a forming member yieldingly engaging the pulpous material, and means operable during the operation of the forming mechanism for regulating the force with which the forming member engages the pulpous material.

20. In a mechanism for working pulpous material on a core, a plurality of forming members yieldingly engaging the pulpous material, and means operable during the operation of the forming mechanism forsimultaneously regulating the force with which the forming members engage the pulpous material. g

21. In a mechanism for working pulpous material on a core, a rotatable carrier, a forming member mounted upon the carrier, and means operable duringthe rotation of the carrier for adjusting the forming member.

22. In a mechanism for working pulpous material on a core, a rotatable carrier, a forming member mounted upon thecarrier, and means mounted on the carrier and operable during rotation thereof for adjusting the forming member.

23. In amecha-nism for working pulpous material on a core, a rotatable carrier, a forming member mounted upon the carrier, and means slidably journaled on the carrier for adjusting the forming member during rotation of the carrier.

24. In a mechanism for Working pulpous material on a core, a rotatable carrier, an annular member disposed around the carrier and movable longitudinally thereof, means for rotating the annular member relative to the carrier, during said longitudinal movement, and a forming member carried by the annular member and yieldii gly engaging said pnlpous material.

25. In a mechanism for working pulpous material on a core, a rotatable carrier, means mounted upon the carrier and movable longitudinally thereof, means for rotating the said first mentioned means relative'to the carrier during saic. longitudinal move ment, and a forming member carried by said first mentioned means. 7

In witness whereof, I hereunto subscribe 2 

